When the voltage across the forward biased diode is measured, the meter displays

Question

BlackTom AI · Accepted Answer

Consider the context: a voltmeter measuring the voltage across a forward-biased diode.
Option a: 'the total voltage of the circuit.' This is incorrect because the meter is connected across only the diode, not across every element in the circuit, so it cannot read the entire circuit voltage.
Option b: '1 A.' This is a current value, not a voltage. A voltmeter measures voltage, so reporting current here would be inappropriate and misleading.
Option c: '0 V.' In forward conduction, a diode typically drops a small, finite voltage (often around 0.6–0.7 V for a silicon diode). Therefore, reading 0 V would imply no drop across the diode, which contradicts forward conduction and is unlikely in a conducting state.
Option d: 'threshold voltage of the diode.' This phrasing captures the idea of the forward voltage drop that appears when a diode conducts in forward bias. While the exact value can vary (e.g., ~0.7 V for silicon, sometimes a bit lower or higher depending on diode type and current), the meter indeed shows the forward voltage drop across the diode, i.e., the threshold-like drop required to sustain conduction.
In summary, the measured quantity aligns with the forward voltage across the diode, not the total circuit voltage, not a current value, and not zero volts; hence the described reading corresponds to the forward voltage drop characteristic of a conducting diode.

BL50A0021 Basic Electronics 1 - Blended teaching, in English 6.1.2025-23.2.2025 Exam 1

When the voltage across the forward biased diode is measured, the meter displays

查看解析

登录即可查看完整答案

类似问题

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

The CVP and break-even analysis are supported by a range of important assumptions. Which of the following is not an assumption of the CVP:

The break-even point is that at which:

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单